What is the cause of Uncle Lucas' illness in "Bless Me, Ultima"?

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sullymonster eNotes educator| Certified Educator

Tony's Uncle Lucas is cursed by three witches who are the daughers of Tenorio Trementina, a man who owns a bar in El Puerto.  The "witches" were observed by Uncle Lucas in a meeting, and that is why they have put the curse on him.  This is important because it causes the revelation of Ultima's healing powers.  When the town priest is unable to cure Lucas, Ultima goes to work.  This will also bring the rage of Tenoria Trementina down upon her - when one of his daughters dies, he blames Ultima.